Good reasons for working with Hengstler
The Hengstler headquarters are located in
Aldingen, in South-West Germany, on the
edge of the Black Forest - a region famous
for its industrial pioneers and inventors. The
foundations for the Hengstler company
were laid by one of these
inventors, Johannes Hengstler,
who, in 1846, set up a workshop
which was later to become
the center of the worldwide
Hengstler group.

Better by competence
This catalog provides proof of our competence in the business field of encoders - a
comprehensive program characterized
(as are all Hengstler products) by state-ofthe-art technology, excellent design and
highest standards of quality and reliability.

Hengstler - you can count on us.

The workshop was started for
the manufacture of clock
springs; today, Hengstler products range from miniature
counters to absolute hollow
shaft encoders.

All technical data and information contained
herein, including the graphics, were collected
and compiled with the utmost care.
This broschure provides information on products
and accessories, which, however, does not
constitute any guarantee for technical data
or features. The user of these products must

All technical data is subject to alterations. For
questions of technical nature or regarding
prices and delivery, please contact our company
headquarters or field service employees.

2

ENCODERS C O UN TER S CONTROLLERS INDICATORS RELAYS PRINTERS CUTTERS

Components

determine himself the suitability of the product
for the intended use.

Quality

■ Hengstler is never far away - wherever you are in

■ High-quality materials in accordance

■
■
■
■
■

the world
Application-specific assistance
Customer-oriented manufacturing (one-piece-flow)
Fair price/performance ratio
Short delivery times and a high degree
of availability
48-hour repair service

■ Hengstler offers a wide range of components
for counting, controlling, indicating,
measuring, switching and printing
■ Get it all from one source!
■ Benefit from numerous variants
- for added flexibility.

■ Hengstler was founded in 1846 and
has been manufacturing
counters since 1926,
printers since 1970,
sensors since 1987,
relays since 1983...

Innovation
■ Product development is based on state-of-the-art

Competence

technology and highly advanced processes.

■ Our products are setting the pace

■ Vast know-how in the fields of development,
manufacturing and sales marketing
■ Assistance and support are provided by specialists.

Successfull with Hengstler
Innovation at an international level
Our numerous branches and representatives
in Europe, America and Asia have made us a
truly international enterprise. Our availability around the globe is, of course, a great
benefit for our customers - the next
Hengstler contact is never far away.
Our sound footing in all parts of the world
also has a positive effect on our product
know-how. Findings from worldwide research programs provide a pool of
information from which, in turn, the material
for the carefully directed, overall technological concept is won. These findings form
the practice-oriented basis for ongoing
innovation and efficiency in all corporate
sectors.

Components

The pace of innovation is getting faster and
faster in all sectors of technology. Only
those who are able to follow or even set this
pace will continue to be competitive.
Strong, reliable partners are needed to help
you cope with these new demands. You
need partners whose top priority is added
product value/customer value, customerorientation and high quality.
And taking all this into account, Hengstler is
your partner of choice.
Hengstler is a leading European manufacturer in the field of industrial counting
and control components, e.g. counters,
encoders, industrial and temperature
controllers, as well as relays.
The product range is completed by printers
and cutters, with Hengstler being the
greatest manufacturer for cutters in Europe.

Hengstler:
your Technology
Pa r t n e r
One of our particular strengths is the
project management of custom applications.
The basis for this is our wide experience
gained over many years in the fields of electromechanics, mechanics, pneumatics and
electronics which is, of course, mirrored in
our product program. Hengstler offers its
customers complete support starting at the
project planning and development right
through to the final product. At present we
are handling complex projects in the field of
pneumatics and printers for well-known
companies, such as Bosch, Festo, IBM and
Siemens.

You will always find a friendly contact at
Hengstler – wherever you are in the world.
Our experienced, competent partners are
familiar with your branch – just get in touch.
Please contact your local Hengstler distributor, addresses see chapter “Contact” (page
288).

If you should have any technical questions
concerning your product selection or specific
application – get fast and competent
help. See chapter “Contact” (page 288).

You can reach our team to place your order
by phone between 8.00 am and 5.00 pm:
Phone +49 800 - 436 47 85 37 or
Phone +49 7424-89 201.
Orders may also be placed 24 hours by
Fax +49 7424-89 500.

Your order will be processed immediately
after receipt. If any question remains regarding your order, we will call you back.
Please contact us if you require a quotation
for higher quantities, special versions or
delivery times. If you can´t find your desired
product in our catalogue, don´t hesitate to
let us know - we would be glad to help you.

Customer Advantages
Please visit as well our online store at
w w w.hengstler.com.
■ At any time reachable for
your orders

■ Small, compact,
5 different versions
■ Voltage supply via
lithium cell or
12-24 VDC
■ 8-digit LCD or
6-digit LED display
■ Two versions with
different time ranges
for each type
■ High-voltage version
for 12-250 VDC/AC
input pulses
■ Optional with output
signal for use as
maintenance counter

0.2-3 s; 2-30 s, 20-300 s;
depending on version
Hose coupler M5 or
rapid-fit connector;
DIN-rail mounting
By interrupting the air
intake
After the set time has
elapsed, input 1 is
connected to output 2

236

Page

Components

Hose coupler M5, or
rapid-fit connector

Interrupts the output for
approx. 300 ms after the
set time value has
elapsed

■ Piece/quantity counting by means of
proximity switches, light barriers, reflectance light barriers, or switches.
For the detection of unit numbers, e.g.
screws, nails, bottles, single packs, or other
production units that have to be counted.
Detection is possible by electronic or electromechanical counters.

■ Dosing and Filling
Flow meters and a preset counter allow controlled and accurate filling or dosing of liquid
media.

■ Shift-counting of unit numbers or totalizing counts of 2 production lines
Piece-counting of production units under
shift-operation conditions, or counting of
two parallel production lines, thereby indicating single shift values and the total unit
number.

■ Cutting and stacking of foils/films,
bands/strips, metals, paper, carton, etc. by
means of batch counters.
Preset counter for length control – also available with fast/slow positioning. Control of
piece numbers via an integrated batch
counter.

■ Measuring of assembly and manufacturing times or - in the sports sector - the
times of a race or competition, by means of
a short-duration timer; resolution down to
milliseconds

Extruder

Timing as accurate as that of quartz timers pulse width or period length functions for all
fields of application. Optional preset functions are available for controlling.
■ Speed measurements and monitoring of
length controls of extruders
Angle encoders or initiators enable the detection, control and monitoring of the forward
feed speed or length of plastic or metal profiles.

■ Thickness measurement of plates, cables,
films, etc. by means of encoders and limitvalue counters
A simple mechanical principle converts
material thickness into a rotating movement.
A limit-value counter evaluates the thickness
and signals warning messages if values are
exceeded or fallen below.

36

Components

■ Position indication with limit values to
protect lateral stops
Position indication with absolute or incremental encoder for convenient workpiece
machining. With digital display.
■ Speed monitoring of machine tools
Detection of the workpiece speed by means
of a tachometer; monitoring of the speed is
possible by means of min. and max. limit
values.

The components represented in the overview were approved resp. prechecked by the
Physikalisch-Technische Bundesanstalt (PTB, German Federal Institute for Physics and
Technology) for use with length measuring equipment appropriate for verification.

These systems are used where length measurement is the main
component or a part of the manufacturing process.
■ Length measurement of tile materials such as stone tiles, wood etc.
■ Length measurement of band materials such as fabrics (carpets, foil, paper)
■ Length measurement of cable, wire, thread etc.

For further details please refer to our Counter program, heading „Preset counters”.
For the 724 signo type a large number of printing masks has already been developed.
Please see „Preset counter / signo 724“.

* the required number of pulses depends on the measuring wheel’s circumference and
on your desired resolution
For further details please refer to our Encoder catalogue section “RI 58-0”
Ordering data when coupled with
shaft/motor etc.

The choice of the suitable encoder type depends on the respective application: thus
the whole range of encoders of the type RI is at your disposal
The only prerequisites for connection to the signo series counters are:
■ Supply voltage: 10 … 30 V (E)
■ Output: push-pull short circuit proof (K)

Speed monitoring for continuous manufacturing processes
■ Delivery rate of a bottling plant (number of bottles per hour)
■ Speed monitoring for a conveyor belt within given limits
■ Flow measurement per period on conveyor equipment for solids and liquids

For further details please refer to headings “Totalizing counters” and “Preset counters”
in this catalogue.

■ OUTPUT DEVICES

Detailed information about possible output devices, such as
■ PRIMO Thermal printer
■ Large Panel display
■ Communication with PC (3964 R-Siemens protocol) or connection to bus net
you will find under the description of “resp. under the counter description Length
Measurement Systems”

■ CONNECTION DIAGRAM

Printer

46780
31 2671
03

86786
3

Initiator,
Initiator z. B.
e.g.
proximity switch
Näherungsschalter

Counter

Panel display

Counter

Printer

For your order

Here you can collect the ordering codes of your chosen versions for your order.

52

Components

ENCODERS C O UN TER S CONTROLLERS INDICATORS RELAYS PRINTERS CUTTERS

Modular System 400
All counters in the Hengstler modular system 400 are of the plug-in type and have
front panel dimensions based on 25 x 50 mm. They can be arranged in any combination as far as functionally feasible. Each counter requires a connection box for
electrical connections and usually also a panel frame for mounting.
Applications

MODULAR SYSTEM 400

COUNTER
with connection box and panel frame

MOUNTING
the connection box by means of a
flat steel bar

The counters are installed by means of
the connection box or by a connection
box and panel frame. For more complex
arrangements, any number of connection boxes may be assembled to form a
compact unit without open spaces between the boxes.

EXAMPLE
Counter combination in panel frame
size 5

Also, several counters can be combined
together with their corresponding
connection boxes to form a unit in one
panel frame. Five panel frame sizes are
available for this purpose (see accessories).

Totalizing counters are generally used to register the number of events
and to present the result in digital form. Our broad spectrum of totalizing counters incorporates - as do all Hengstler products - state-ofthe-art technology, attractive design, outstanding quality and reliability.

To best match your application, you can order special functions such as prescaler
value, decimal point and preset value, which are permanently set by us before delivery. With the variable prescaler value you can adapt to already existing transfer
ratios of your application. Small resolutions can be shown with the decimal point,
e. g. for the position indicator or the tachometer.
A special feature is the possibility of displaying an information text in the display,
e. g. for the surveillance of maintenance cycles. In this case the desired information
is shown in the display after reaching the fixed preset value. You can display any text
that can be created with the 7-segment alphabet, e. g. STOP, HELP, FILTER etc.

The information text displayed on reaching the
preset value can be built up as required from the
7-segment alphabet
4) not available for time counters
5) not available for tachometers
and position indicator

counter
tachometer
time counter
shift counter
batch counter
* only for
multifunction
version

The important values, preset 1, preset 2, prescaler and separate totalizer can be directly selected. It is necessary only to press the relevant button and the E-button
together. To make the operation still more easy, access to those values can be locked
separately. All other system parameters like operation and count modes are laid down
in a common operation level. These parameters are usually programmed once only
during the first initiation.

Because of the unlimited number of measurements it can handle, the tico 735 device
family is equally well suited to applications in the world of impulse and time counting as to those in the processing area.
If you are looking for display clarity and high levels of accuracy, then the tico 735
is the right choice for you. The dual-colour display is unique, highlighting an alarm
situation or an excess value at a single glance. You can programs your own choice
of display colour to indicate normal or alarm conditions.

Indication of infeed values, lengths, support- or machine positions, totalizing
values etc.The coupling to the machine may be effected e. g. with an incremental
shaft encoder from the wide and comprehensive Hengstler program of types RI 30
to RI 58.

DISPLAY

6-digit LED display with 14 mm high digits, easy to read, decimal point can be
programmed

signo 727

P1

Section B
B
Bereich

HENGSTLER

P2

Bereich AA
Section

SET
PSC

CHAIN

Section A:
Section B:

shows the actual count value when in counting mode, and the changeable parameters when in programming mode.
LED indicators showing the active output signal, and in programming
mode indicating the changeable parameter.

PROGRAMMING
Direct access with
function keys F1 and F 2

P 1: Limit
value 1

P 2: Limit
value 2

Operation level 1

Operation level 2

Operation level 3

SET: setvalue

PSC: Prescaler

Systemparameters

-,-,-,- Decimal point

Programming of signo 727 is possible by direct access and in the 3 operation levels.
Direct access:
Limit value 1, Limit value 2 are set with the function keys F1,
F2
Operation level 1: Set value
Operation level 2: Includes prescaler and decimal point
Operation level 3: Includes system parameters, which are normally programmed
during start-up procedure only.
Unauthorized programming of the signo 727 is prevented by a control input, which
can lock the operation levels.

Remote Terminal Converter
The RTC is needed if more than one counter is to be connected to the PC or if the
distance between the machine and the PC is longer than 15 m.
■ up to 31 counters can be connected to the RTC via RS 485 bus
■ Connection RTC - PC is a standard RS 232
■ optimally tuned for operation with the Hengstler Software HTS (Hengstler Terminal Server)
■ Power supply 12..24 VDC or 12..18 VAC, max. 2 VA (plug-in power supply available as accessory)

Plug-in Totalizing Counters, Types 464-468
Modular System 400
■ 4, 6, or 8-digit display
■ with manual/electrical reset or
without reset
■ Simple installation
■ Easy maintenance through plug-in
system
■ Can be combined with other
counters in the modular system

Actuation is effected by a magnetic field. With suitable magnets it is possible to
achieve actuating distances of up to 50 mm. The direction of approach of the actuating magnet is not critical. When choosing a counter, it is important to
observe the correct polarity of the actuator (see Figure).
We supply suitable magnets for actuating this counter. The magnet core consists of barium iron (hard ferrite 22/17
acc. to DIN 17 410). For attachment
(centre hole) only screws made of nonmagnetic material may be used.

Preset Counters
Preset counters are counting devices with control functions. Many different applications can be handled using the various versions which
are available. Depending on your requirements, you can choose from
electronic, electro-mechanical, pneumatic or mechanical models.
Most of the electronic preset counters have two presets and, using an
initial switching point, they can control fast/slow positioning or
coarse/fine dosage rates, for instance

counter
tachometer
time counter
shift counter
batch counter
* only for
multifunction
version

The important values, preset 1, preset 2, prescaler and separate totalizer can be
directly selected. It is necessary only to press the relevant button and the E-button
together. To make the operation still more easy, access to those values can be locked
separately.
All other system parameters like operation and count modes are laid down in a common operation level. These parameters are usually programmed once only during the
first initiation.

Flexible Counter Series, Dual
tico 735
Colour Display in DIN size 48 x 96 mm
COUNTING - MEASURING - INDICATING - MONITORING - TRANSMITTING
Because of the unlimited number of measurements it can handle, the tico 735 device
family is equally well suited to applications in the world of impulse and time counting as to those in the processing area.

If you are looking for display clarity and high levels of accuracy, then the tico 735
is the right choice for you. The dual-colour display is unique, highlighting an alarm
situation or an excess value at a single glance. You can programs your own choice
of display colour to indicate normal or alarm conditions.

6-digit LED display with 14 mm high figures, easy to read, decimal point can be
programmed.

DISPLAY

B

signo 723

P1
P2
Set
PSC

Section A
Section B:

A

Shows the actual counting position when in counting mode, and
the changeable parameters when in programming mode.
LED indicators showing the active output signal, and in programming mode indicating the changeable parameter.

PROGRAMMING
Direct access with functionkeys F1 and F2

Operation level 1

Operation level 2

P 1:
P 2:
Preselection 1 Preselection 2

SET: set
setvalue
SET:
value

PSC: Prescaler

Operation level 3

system
parameters

-,-,-,- Decimalpoint

Programming of signo 723.1 is divided into 3 operation levels and direct access.
Direct access:
Preselection 1 and 2 can be directly selected by the function
keys F1 and F2
Operation level 1: Includes the set value
Operation level 2: Includes machine parameters and application specific
parameters.
Operation level 3: Includes system parameters like operation modes and count
modes, which mormally are programmed during start-up procedure.
Unauthorized programming of the signo 723.1 is prevented by a control input, which
can lock the operation levels as well as the operation keys.

Remote Terminal Converter
The RTC is needed if more than one counter is to be connected to the PC or if the
distance between the machine and the PC is longer than 15 m.
■ up to 31 counters can be connected to the RTC via RS 485 bus
■ Connection RTC - PC is a standard RS 232
■ optimally tuned for operation with the Hengstler Software HTS (Hengstler
Terminal Server)
■ Power supply 12..24 VDC or 12..18 VAC, max. 2 VA (plug-in power supply
available as accessory)

COMPONENTS FOR THIS LENGTH
MEASURING SYSTEM
see also under ”PTB approved measuring systems”

large, 6-digit, 14mm high LED display
up/down counter with programmable resolution (dm, cm or mm)
2 preselections of which one is programmable as trailing signal
easy direct selection by 2 lockable function keys
two relay outputs with change-over contacts
keypad can be secured against unauthorized access
also available with printer interface
For measuring belt systems versions with programmable prescaler

For further accessories see "Accessories"
** on request
** For technical data and dimensioned drawings see accessory modules on page 209
Use only counters with electrical reset.
The connection box is integrated in the module.

For further accessories see ”Accessories“.
Inquire for other voltages
** For technical data and dimensioned drawings see “accessory modules”
Use only counters with electrical reset.
The connection box is integrated in the module.

Indicators
Hengstler displays are designed to handle practically all analogue measuring tasks extremely well, with output and alarm functions for task
monitoring. Data of all types can be pre-processed using the linear output or the RS 485 interface.
Using the PLC display, you can get visible access to your data at a low
price.

COUNTING - MEASURING - INDICATING - MONITORING - TRANSMITTING
Because of the unlimited number of measurements it can handle, the tico 735 device
family is equally well suited to applications in the world of impulse and time counting as to those in the processing area.
If you are looking for display clarity and high levels of accuracy, then the tico 735
is the right choice for you. The dual-colour display is unique, highlighting an alarm
situation or an excess value at a single glance. You can programs your own choice
of display colour to indicate normal or alarm conditions.

Five digit display – Flexible Configuration - High Accuracy
Practically all analogue measurement tasks, particularly reliable process monitoring,
can be solved with just 5 basic versions. Alarm and output functions can be programmed to meet your requirements, enabling band alarm or limit values, with or
without storage feature.

Time counters / Time relays
Time counters show how long equipment, machines and other devices
have been switched on. They show information about elapsed warranty
time, usage and whether it’s time to carry out maintenance work. We
also have a range of time preset counters in our program for use with
time based controllers.
As a further option, we offer a line of modern, well designed Time relays
with a wide range of programming options

■ Operating hours recording
■ Service time counting
■ Service life tests
■ Maintenance interval counter
■ Time control
■ Time delays
■ After run control
■ Pulse shaper
■ Timed on and off switching

■ Small, compact,
5 different versions
■ Voltage supply via
lithium cell or
12-24 VDC
■ 8-digit LCD or
6-digit LED display
■ Two versions with
different time ranges
for each type
■ High-voltage version
for 12-250 VDC/AC
input pulses
■ Optional with output
signal for use as
maintenance counter

To best match your application, you can order special functions such as prescaler
value, decimal point and preset value, which are permanently set by us before delivery. With the variable prescaler value you can adapt to already existing transfer
ratios of your application. Small resolutions can be shown with the decimal point,
e. g. for the position indicator or the tachometer.
A special feature is the possibility of displaying an information text in the display,
e. g. for the surveillance of maintenance cycles. In this case the desired information
is shown in the display after reaching the fixed preset value. You can display any text
that can be created with the 7-segment alphabet, e. g. STOP, HELP, FILTER etc.

1) not available for
standard type 3
2) not available for
standard types 1, 2, 3
3) only available for
standard type 5

Please state the desired special version on your order:

P: (Value);

Prescaler value: 0.000015 to 65535.999984)

D: (Value);
V: (Value);

Decimal point:

0 to 3 positions after the comma4)

Preset value:

0 to 99 999 9995)

T: (Text);

The information text displayed on reaching the
preset value can be built up as required from the
7-segment alphabet
4) not available for time counters
5) not available for tachometers
and position indicator

counter
tachometer
time counter
shift counter
batch counter
* only for
multifunction
version

The important values, preset 1, preset 2, prescaler and separate totalizer can be directly selected. It is necessary only to press the relevant button and the E-button
together. To make the operation still more easy, access to those values can be locked
separately. All other system parameters like operation and count modes are laid down
in a common operation level. These parameters are usually programmed once only
during the first initiation.

counter
tachometer
time counter
shift counter
batch counter
* only for
multifunction
version

The important values, preset 1, preset 2, prescaler and separate totalizer can be directly selected. It is necessary only to press the relevant button and the E-button
together. To make the operation still more easy, access to those values can be locked
separately. All other system parameters like operation and count modes are laid down
in a common operation level. These parameters are usually programmed once only
during the first initiation.

Flexible Counter Series,
tico 735
Dual Colour Display, in DIN size 48 x 96 mm
COUNTING - MEASURING - INDICATING - MONITORING - TRANSMITTING
Because of the unlimited number of measurements it can handle, the tico 735 device
family is equally well suited to applications in the world of impulse and time counting as to those in the processing area.
If you are looking for display clarity and high levels of accuracy, then the tico 735
is the right choice for you. The dual-colour display is unique, highlighting an alarm
situation or an excess value at a single glance. You can programs your own choice
of display colour to indicate normal or alarm conditions.
■ Brilliant 18.5 mm high dual-colour red/green LED display with programmable
colour settings
■ As standard, all models have limit or preset values
■ Scaling available as standard
■ Universal Power Supply 90...264 V AC or 20...50 V AC/DC
■ Simple structured operation with switchable help function
■
■
■
■

Tachometers
Tachometers register events that occur in a certain time interval. No matter whether
delivery rates, rotational speeds or flow rates are measured, the measuring principle
remains the same, only parameters and dimensions differ.

To best match your application, you can order special functions such as prescaler
value, decimal point and preset value, which are permanently set by us before delivery. With the variable prescaler value you can adapt to already existing transfer
ratios of your application. Small resolutions can be shown with the decimal point,
e. g. for the position indicator or the tachometer.
A special feature is the possibility of displaying an information text in the display,
e. g. for the surveillance of maintenance cycles. In this case the desired information
is shown in the display after reaching the fixed preset value. You can display any text
that can be created with the 7-segment alphabet, e. g. STOP, HELP, FILTER etc.

1) not available for
standard type 3
2) not available for
standard types 1, 2, 3
3) only available for
standard type 5

Please state the desired special version on your order:

P: (Value);

0.000015 to 65535.999984)

D: (Value);
V: (Value);

Decimal point:

0 to 3 positions after the comma4)

Preset value:

0 to 99 999 9995)

T: (Text);

The information text displayed on reaching the
preset value can be built up as required from the
7-segment alphabet
4) not available for time counters
5) not available for tachometers
and position indicator

counter
tachometer
time counter
shift counter
batch counter
* only for
multifunction
version

The important values, preset 1, preset 2, prescaler and separate totalizer can be directly selected. It is necessary only to press the relevant button and the E-button
together. To make the operation still more easy, access to those values can be locked
separately. All other system parameters like operation and count modes are laid down
in a common operation level. These parameters are usually programmed once only
during the first initiation.

COUNTING - MEASURING - INDICATING - MONITORING - TRANSMITTING
Because of the unlimited number of measurements it can handle, the tico 735 device
family is equally well suited to applications in the world of impulse and time counting as to those in the processing area.
If you are looking for display clarity and high levels of accuracy, then the tico 735
is the right choice for you. The dual-colour display is unique, highlighting an alarm
situation or an excess value at a single glance. You can programs your own choice
of display colour to indicate normal or alarm conditions.
■ Brilliant 18.5 mm high dual-colour red/green LED display with programmable
colour settings
■ As standard, all models have limit or preset values
■ Scaling available as standard
■ Universal power supply 90...264 V AC or 20...50 V AC/DC
■ Simple structured operation with switchable help function

Alteration of the factory-set standard functions pre-divisor and start-up suppression.

UNIT OF MEASUREMENT

Tachometers signo 722 can be used for registration of almost any time-related measuring dimensions. In consideration of the wide range of different measurement units,
a decal foil with the most common units is provided to label the tachometer.

Pneumatics
There are applications for these components in all areas of automation
where pneumatic actuators such as cylinders or grippers are used, particularly in environments where no electric signals can be used because
of the danger of explosion. Further examples of uses are door control
with track vehicles or controlling mixing in dosage equipment.
Using the building blocks offered by Hengstler’s pneumatic range, you
can construct your own control systems which are only pneumatically
driven.
Typical applications:
■ Fully automatic time control
■ Clock generator
■ Purely pneumatic cylinder
limit switches
■ Door opening times
■ Process step control
■ Dosage rate control

Pneumatics

■ Quantity counting
■ Stroke counting
■ Order and daily production
value recording
■ Service life and maintenance
counter
■ Packaging unit control
■ Time control with manual
intervention

0.2-3 s; 2-30 s, 20-300 s;
depending on version
Hose coupler M5 or
rapid-fit connector;
DIN-rail mounting
By interrupting the air
intake
After the set time has
elapsed, input 1 is
connected to output 2

236

Page

Components

Hose coupler M5, or
rapid-fit connector

Interrupts the output for
approx. 300 ms after the
set time value has
elapsed

The pneumatic totalizing counter consists of a pneumatic actuator system and a
mechanical figure wheel system. The counter is actuated by pneumatic pulses generated by switches, sensors, etc.

FUNCTION

Compressed air pulses exert pressure on the piston of the actuator system via the
connection (hose coupler or rapid-fit coupling).
The blade, loosely connected to the rocker, is actuated by the tappet. With each pulse,
the rocker moves the ones drum by one half of a figure (one half-increment) and
simultaneously tensions a spring which moves the drum a further half-increment as
the pressure drops.

RESETTING

External resetting of totalizing, preset and differential counters is possible by means
of a reset module integrated in the counter.

AMBIENT CONDITIONS

If the counters are used in extremely soiled surroundings, we highly recommend
operating the counters in the specially designed protective covers.

MAINTENANCE

The products shown in this catalogue are maintenance-free.

USE OF COUNTERS

Versatile service-pressure counters in integration mounting and surface-mount construction are designed to count a wide range of processes which operate with pneumatic pulses; the counters can be reset manually or pneumatically (external reset)
before each new counting procedure.
The counters are used as event, piece and batch counters, as integrators, for program
step display and more.

MODIFICATIONS

All dimensions, technical data and other specifications represent the standard of
production and knowledge attained when the material was printed. The functional
features of the devices refer to the condition of the devices when new and under
normal operating conditions (+ 15 to + 25 째C, non- aggressive atmosphere and
neutral operating media). The devices must be protected against freezing at temperatures under + 5 째C.

222

Components

ENCODERS C O UN TER S CONTROLLERS INDICATORS RELAYS PRINTERS CUTTERS

Pneumatic Totalizing Counters
CONNECTION OPTIONS

Totalizing counters (integration mounting and surface-mount versions) are available
with either R 1/8", M5 or rapid-fit couplings.
The corresponding type of connection is defined by the ordering code of the counter
and need not be mentioned additionally when ordering.
Commercially available fixtures can be used for R 1/8" and M 5 connections.
Rapid-fit couplings are mounted in the counters. We recommend the use of Rilsan
hoses (tubes) with 4 mm outside diameter.

All hoses are simply inserted into the rapid-fit couplings. Ensure that the hose is inserted far enough to allow the O-ring to seal properly. The hose is released by pressing (e.g. using a screw driver) the guide ring and pulling the hose at the same time.

The pneumatic preset counter consists of a pneumatic actuator system, a mechanical figure wheel and a pneumatic limit switch. The counter is actuated by pneumatic pulses generated by switches, sensors, etc.

FUNCTION

Compressed air pulses exert pressure on the piston of the actuator system via the
connection (hose coupler or rapid-fit coupling). The blade, loosely connected to the
rocker, is actuated by the tappet. With each pulse, the rocker moves the ones drum
by one half of a figure (one half-increment) and simultaneously tensions a spring
which moves the drum a further half-increment as the pressure drops.

PNEUMATIC OUTPUT SIGNAL

When a set value is reached e. g. from zero, the actuating lever of the counter releases the plunger of the pneumatic counter. The valve of the switch is reversed and the
output is pressurized. When the counter is reset, whether manually, pneumatically
or automatically by means of an accessory module, the plunger is pressed back into
initial position by the mechanical actuating lever, blocking the output signal.

SUBTRACTING PRESET COUNTER

This counter subtracts pneumatic compressed-air pulses from a set value and releases a pneumatic output signal when zero is reached.

ADDING PRESET COUNTER

This counter adds pneumatic compressed-air pulses starting from zero and releases
a pneumatic output signal when the preset value is reached. The value is preset by
pressing the reset key and entering the preset value. The preset value remains visible when the counter is reset.

PERMANENTLY VISIBLE
PRESET VALUE

The preset value is permanently visible; it can be read at any time. Because the counting mode is adding in this case, the added sum can be assumed immediately without further calculation.
This means that the number of pieces produced or elapsed time units can be read.
In addition, the preset value can be reset without resetting to zero first and is thus
also possible during operation if necessary.

USE OF COUNTER

Preset counters for normal and regulating pressure can be used for a wide range of
applications in pneumatic circuits and systems, the pilot and final signals acting as
control elements. The counters are used for metering, as digitally adjustable timers,
for presetting quantity and number of pieces, and in conjunction with pneumatic
limit switches, air barriers, proximity switches, etc. The counters can be reset
manually, pneumatically through an external pulse, or automatically by means of an
accessory module.

MAINTENANCE

The products shown in this catalogue are maintenance-free.

MODIFICATIONS

All dimensions, technical data and other specifications represent the standard of production and knowledge attained when the material was printed. The functional features of the devices refer to the condition of the devices when new and under normal operating conditions (+ 15 to + 25 째C, non- aggressive atmosphere and neutral
operating media).
The devices must be protected against freezing at temperatures under + 5 째C.

Using two pneumatic preset counters it is possible to implement pilot signals with
values ranging from 1 to 99.999. These counters are especially suitable as controlling elements for semi-automatic or fully automated processes. This applies both to
varying preset/setting values and to values which remain the same for a long period.

The combination of a pneumatic minutes or seconds pulse generator and a
pneumatic preset counter allows setting
of times from 1 to 99999 s or 1 to 99999
min. Versions with automatic reset permit fully automatic timing sequences.

Position Indicators
Position indicators process the angle or path information that is provided by appropriate pulse generators and thus enable positions to be
determined.
Application:
Machines with adjustable limit stops (machine tools, paper processing
machinery, saws, wood working machines etc.)
The diverse range offers the possibility of monitoring and protecting
limit stops as well sending positional data to control systems.

To best match your application, you can order special functions such as prescaler
value, decimal point and preset value, which are permanently set by us before delivery. With the variable prescaler value you can adapt to already existing transfer
ratios of your application. Small resolutions can be shown with the decimal point,
e. g. for the position indicator or the tachometer.
A special feature is the possibility of displaying an information text in the display,
e. g. for the surveillance of maintenance cycles. In this case the desired information
is shown in the display after reaching the fixed preset value. You can display any text
that can be created with the 7-segment alphabet, e. g. STOP, HELP, FILTER etc.

The information text displayed on reaching the
preset value can be built up as required from the
7-segment alphabet
4) not available for time counters
5) not available for tachometers
and position indicator

Flexible Counter Series,
tico 735
Dual Colour Display in DIN size 48 x 96 mm
COUNTING - MEASURING - INDICATING - MONITORING - TRANSMITTING
Because of the unlimited number of measurements it can handle, the tico 735 device
family is equally well suited to applications in the world of impulse and time counting as to those in the processing area.
If you are looking for display clarity and high levels of accuracy, then the tico 735
is the right choice for you. The dual-colour display is unique, highlighting an alarm
situation or an excess value at a single glance. You can programs your own choice
of display colour to indicate normal or alarm conditions.
FEATURES

Indication of infeed values, lengths, support- or machine positions, totalizing values
etc.The coupling to the machine may be effected e. g. with an incremental shaft encoder from the wide and comprehensive Hengstler program of types RI 30 to RI 58.

DISPLAY

6-digit LED display with 14 mm high digits, easy to read, decimal point can be
programmed

signo 727

P1

Section B
B
Bereich

HENGSTLER

P2

Bereich AA
Section

SET
PSC

CHAIN

Section A:
Section B:

shows the actual count value when in counting mode, and the changeable parameters when in programming mode.
LED indicators showing the active output signal, and in programming
mode indicating the changeable parameter.

PROGRAMMING
Direct access with
function keys F1 and F 2

P 1: Limit
value 1

P 2: Limit
value 2

Operation level 1

Operation level 2

SET: setvalue

PSC: Prescaler

Operation level 3

Systemparameters

-,-,-,- Decimal point

Programming of signo 727 is possible by direct access and in the 3 operation levels.
Direct access:
Limit value 1, Limit value 2 are set with the function keys
F1, F2
Operation level 1:
Set value
Operation level 2:
Includes prescaler and decimal point
Operation level 3:
Includes system parameters, which are normally programmed during start-up procedure only.
Unauthorized programming of the signo 727 is prevented by a control input, which
can lock the operation levels.

The RTC is needed if more than one counter is to be connected to the PC or if the
distance between the machine and the PC is longer than 15 m.
■ up to 31 counters can be connected to the RTC via RS 485 bus
■ Connection RTC - PC is a standard RS 232
■ optimally tuned for operation with the Hengstler Software HTS (Hengstler Terminal Server)
■ Power supply 12..24 VDC or 12..18 VAC, max. 2 VA (plug-in power supply available as accessory)

Indication of infeed values, lengths, support- or machine positions, totalizing values
etc.
The coupling to the machine may be done with an absolute encoder with SSI-Interface from the wide and comprehensive Hengstler program of types RA 58.
10–24 VDC
0V
DATA +
DATA –
Clock +
Clock –

10–30 VDC
0V
DATA +
DATA –
Clock +
Clock –
Encoder

46780
727.11
31 2671
03

86786
3

0 Power
0 Power

counter
signo 727 SSI

RA 58
singleturn
multiturn
multiturn programmable

DISPLAY

signo 727 SSI

P1

Section B

P2

HENGSTLER
Section A

SET
DATA

CHAIN

Section A:
Section B:

shows the actual count value when in counting mode, and the changeable parameters when in programming mode.
LED indicators showing the active output signal, and in programming
mode indicating the changeable parameter.

Direct access with
function keys F1 and F2

Operating level 1

Operating level 2

P1:
limit value 1

SET: setvalue

absolute
informations
of the encoder

P2:
limit value 2

Position
Indicators

PROGRAMMING
Operating level 3

systemparameters

Programming of signo 727 is possible by direct access and in the 3 operating levels
Direct access:
Limit values are set with the function keys F1, F2
Operating level 1: Set value
Operating level 2: Includes absolute informations of the encoder
Operating level 3: Includes system parameters, which are normally programmed
during start-up procedure only.
Unauthorized programming of the signo 727 is prevented by a control input, which
can lock the operating levels.